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CVE-2026-57997

nvd nist
Published: Jun 29, 2026Modified: Jul 1, 2026

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6.3
Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less
Source: disclosure@vulncheck.com (Secondary)

Description

Strapi users-permissions plugin fails to restrict JWT algorithms when plugin::users-permissions.jwt.algorithm is not explicitly configured, allowing acceptance of HS384 and HS512 tokens alongside HS256. Attackers possessing the jwtSecret can mint tokens with non-standard HMAC variants to bypass algorithm restrictions and weaken authentication controls.

Affected (1)

Products: Strapi: Strapi
Strapi
1 product
Strapi
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Strapi
Before 5.7.0

Related CWEs

CWE-327
Use of a Broken or Risky Cryptographic Algorithm
The product uses a broken or risky cryptographic algorithm or protocol.

References (4)

Source: disclosure@vulncheck.com
Product
Source: disclosure@vulncheck.com
Issue Tracking
Source: disclosure@vulncheck.com
Issue TrackingPatch
Source: disclosure@vulncheck.com
PatchThird Party Advisory

Timeline

No history available yet.